Acetylene-generator.



No. 674,6I0. Patented May 2|, 190:. J. A. MOSHER.

AGETYLENE GENERATOR.

(Application filed Aug. 22, 1900.) (No Model.)

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ACETYLENE GENERATOR.

'App1icatio1 1 filed Aug. 22, 1900.) (No Model.) 3 Sheets-Sheet 2.

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J. A. MOSHER. ACETYLENE'GENERATOR.

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JOHN A. MOSI-IER, OF CHICAGO, ILLINOIS, ASSIGNOR TO THE ADAMS &;

I WESTLAKE COMPANY, OF ILLINOIS.

ACETYLEN E-G EN ERATOR.

SPECIFICATION forming part of Letters Patent No. 674,610, dated May 21, 1901.

Application filed August 22, 1900.

To all whom it may concern.-

Beit known that I, JOHN A. MOSHER, a citizen of the United States, and a resident of Chicago, county of Cook, and State of Illinois, have invented certain new and useful Improvements in Acetylene-Generators, of which the following is a specification and which are illustrated in the accompanying drawings, forming a part thereof.

This invention relates to that type of generators as shown in Patent No. 652,974, granted me July 3, 1900, in which a generating-cell is removably attached to the piping system by means of which water is delivered to the cell and gas conveyed therefrom.

The object of the present invention is to provide means for locking the cell against removal until the valve in its neck and the valve of the nipple of the piping system to which the cell is attached are closed, the invention consisting in the mechanism hereinafter fully described and which is illustrated in the accompanyingdrawings, in which- Figure 1 is a detail side elevation, partly in section, of the generator. Fig. 2 is a detail front elevation of the same. Fig. 3 is a plan of the device as shown in Figs. 1 and 2. Fig. 4is a plan section on the line 4 4 of Fig. 1, some of the parts being broken away. Fig. 5 is a plan section on the line 5 5 of Fig. 2. Fig. 6 is a sectional view on the line 6 6 of Fig. 4. Fig. 7 is a detail of one of the parts of the device. Fig. 8 is a detail showing a modified form of construction of some of the parts. Fig. 9 is a detail front elevation of the generator, showing the water connection, other parts being omitted. Fig. 10 is a detail section on the line 10 10 of Fig. 9, the supporting-bracket also being shown; and Fig. 11 is a plan section on the line 11 11 of Fig. 10.

There is shown in the drawings a wall-plate 10, to which the generator is secured, being carried by brackets 11 and 12.

13 and let are vertical rods connecting the two brackets and serving as guides for the chair 17, upon which the generating cell rests.

15 is the nipple of the water and gas tubes 50 (not shown) and is provided with a valve 23. 16 is the generating-cell, having a neck 16,

Serial No. 27,679. (No model.)

within which there is located a valve 22 and which engages the nipple 15. The cell 16 is seated upon the chair 17, having a downweirdly-projecting stem apertured to receive a screw-rod 18, swiveled in a suitable hub 11 in the bracket 11 and having at its lowerend a hand-wheel 19, by which it may be rotated for the purpose of raising and lowering the chair. The cell having been seated upon the chair, the latter is raised so as to force the 'neck 16 of the cell into engagement with the nipple 15.

A ratchet-wheel 20 is fixed upon the rod 18,

and with it there cooperates a pawl 21, which may be spring-controlled and which prevents the turning back of the screw 18 in order to disengage the cell from the nipple.

All of the parts thus far named are shown in the before-mentioned patent.

The present invention adds to the device locking means whereby the pawl 21 is disengaged from theratchet by the closing of the valves 22 and 23. This is accomplished by means of a cam-block 24, shown as being in the form of an inverted truncated cone, which is carried by a rod 25, vertically movable in apertures in thebrackets 11 and 12, so that by the descent of the rod the ca m-block forces back the pawl out of engagement with the ratchet-wheel, allowing the hand-wheel 19 to be turned. 7

At the upper end of the rod 25 there is a cross-bar 26, from which there depends a short rod 27, playing in a suitable aperture '85 in the bracket 12. A spring 28, shown as being coiled around the rod 27, reacts between the bracket 12 and the cross-bar 26, so as to raise the rod 25, holding the cam-block 24 normally out of engagement with the pawl 21. 9o Anarm 29 is attached to the valve 23 and is adapted to bear upon the cross-bar 26 so as to force it down, so that by the closing of the valve 23 the pawl 21 is disengaged from the ratchet.

In order to prevent the disengagement of the pawl from the ratchet before the valve 22 is closed, a plate 30 is pivoted to the under side of the bracket 12 and is held by a spring 31 normally across the aperture Within which 100 the rod 27 plays, thereby preventing the descent of this rod.

An arm 33, fixed to the valve 22, is so disposed as to engage a cam-flange 32, formed upon the plate 30, for the purpose of forcing the plate backwardly against the resistance of the spring 31, so as to permit the descent of the rod 27. It will be seen, therefore, that in order to release the pawl 21 it is necessary first to close the valves 22 and 23 in the order named.

It isimportant that the valve 23 should not be openable unless the cell 16 is in place. Otherwise through accident or ignorance an escape of gas from the tube system might occur. This is accomplished by locking the arm 29 to the cross-bar 2b and locking the.rod 27 in its depressed position. To this end a gravity-latch 34 is pivoted to the cross-bar 26 in such position that as this bar is forced downwardly the latch comes into contact with the bracket 12 and is turned upon its pivot, so thatits upperend is hooked over the arm 29.

The rod 27 is provided with a notch 27,

adapted to receive the edge of the plate 30 when the latter is released from the arm 33 by the removal of the cell 16, so that when the cell is removed the plate 30 prevents the rod from moving forwardly, and hence prevents the turning of the valve 23.

. If desired, the spring 21 for controlling the pawl 21 may be dispensed with and the pawlpositively moved in both directions. To this end the rod 25 may be shortened at its lower end and provided with a cross-bar 36, from which depend two rods 37 and 38, the former carrying the cam-block 24 for releasing the pawl 21 and the latter carryinga similar camblock 35, having its inclined face forwardly directed, however, for forcing the pawl into engagement with the ratchet-wheel, so that while the downward movement of the rod 25 will releasethe pawl'its forward movement will throw it into engagement with the ratchet. By the employment of a device of this kind it becomes impossible to release the pawl except by turning the valves.

Any desired form of cams may be used in place of the cam-blocks 24 and 35. The form shown is preferred, because the block may be turned in the event of wear.

I also show means for providing against the accidental discharge of water when the generating-cell is disconnected from the gas-nipple. In Fig. 9 the source of water-supply is shown consisting of a tank 10, a down-pipe 41, and a riser 42, connecting at 43 with a duct 44, cored in the nipple 15. This duct is adapted to register with a passage 45 in the valve 23 and opens to the main transverse passage 46 thereto, so that when the valve is opened to allow the escape of gas from the generating-cell to the distributing system it is also in such position as to provide for the induction of water to the cell. Should the valves 47 and 48 in the riser 42 be left open when the generating-cell 16 is detached, no flooding of the apartment can occur, because, as hereinbefore described, the valve must mestic service or in a railway-car, that there should be no escape of gas incident to the removal of a cell whose charge has been exhausted and the placing of a new one. As this service may be performed by inexperienced or careless persons, reliance cannot be had upon the individual to see to it that the valves are first closed before the cell is disconnected from the nipple. The mechanism hereinbefore described by rendering it impossible to thus disconnect the cell until the valves are both closed greatly increases the practicability of this type of generators.

I claim as my invention 1. In an acetylenegenerator, in combination, a piping system, a nipple attached to the system, a generating-cell having a neck for engaging the nipple and forming therewith a passage to the piping system, a valve for controlling such passage, means for detachablysecnring the cell to the nipple, means for locking such securing means, and means controlled by the valve for releasing such locking means.

2. In an acetylene-generator, in combination, a gas and water nipple havinga valve, a generating-cell having a valve and being adapted to detachably engage the nipple, means for locking the cell in engagement with the nipple, and connection between the valves and such locking means whereby the lock is released by the closing of the valves.

3. In an acetylene-generator, in combination, a gas and water nipple having a valve, a generatingcell having a valve and being adapted to detachably engage the nipple, means for locking the cell in engagement with the nipple, connection between such locking means and one of the valves whereby the lock is released by the closing of the valve, and connection between such two valves whereby the lock-releasing valve cannot be closed until the other valve is closed.

4. In an acetylene-generator, in combination, a water and gas nipple having a valve, a generating-cell adapted to detachably engage the nipple, and means releasable by the engagement of the cell with the nipple for looking the valve of the nipple in its closed position.

5. In an acetylene-generator, in combination, a water and gas nipple having a valve, a generating-cell adapted to detachably engage the nipple, means for lockin g the nipple-valve when the cell is disengaged and being releasable by the reengagement of the cell with the nipple.

6. In an acetylene-generator, in combination, a pair of fixed brackets, a gas and water nipple carried by one of the brackets and having a rotatable valve, a screw-adjusted chair carried by the other bracket and adapted to support a generating-cell, a ratchetwheel on the chair-screw, a pawl cooperating with the ratchet-wheel, a cam for retracting the pawl, a stem for the cam, and an arm carried by the nipple-valve for actuating the cam -stem to disengage the pawl, substantially as described.

7. In an acetylene-generator, in combination, a pair of fixed brackets, a gas and water nipple carried by one of the brackets and having a rotatable valve, a screw-adjusted chair carried by the other bracket, a ratchet-wheel on the chair-screw, a pawl cooperating with the ratchet-wheel, a cam for retracting the pawl, a stern for the cam, an arm carried by the nipple-valve for actuating the cam-stem to disengage the pawl,a generating-cell adapted to seat upon the chair and having aneck for engaging the nipple, a rock-valve in the cell-neck, a detent for holding the cam-stem against movement to release the pawl, and an arm on the cell-valve for releasing such detent as the cell-valve is closed.

8. In an acetylene-generator, in combination, a pair of fixed brackets, a gas and water nipple carried by one of the brackets and havare open.

ing a rotatable valve, a screw-adjusted chair carried by the other bracket, a ratchet-wheel on the chair-screw, a pawl cooperating with the ratchet-Wheel, a cam for retracting the pawl, a stem for the cam, an arm carried by the nipple-valve for actuating the cam-stem to disengage the pawl, a latch for holding such arm in engagement with the cam-stem when The nipple-valve is closed, a geueratingcell adapted to seat upon the chair and having a neck for engaging the nipple, a rockvalve in the cell-neck, a detent for holding the cam-stem against movement to release the pawl, and an arm on the cell-valve for releasing such detent as the cell-valve is closed.

9. In an acetylene-generator, in combination, a fixed nipple adapted for connection with a source of Water-supply and with a gasdistributing system, and having a valve for controlling the connection with each, a generating-cell adapted for engagement with the nipple and having a valve, of means for securing the cell in such engagement, and means for preventing the release of such securing means While the nipple and cell valves JOHN A. MOSHER. Witnesses:

LoUIs K. GILLsoN,

E. M. KLATCHER. 

